Make professional-look like tables in Word 2010

[Msoff]

Hi,

I am trying to insert some tables in Word 2010 file, but when I "fit text" in the cells, it shrinks in some cells and enlarges in others, deforming the letters and messing up the inter-letter spaces!

Below in the attached image is an example, where the first table is a normal one, created by default setting; menu insert>table>number of rows and columns>

And the second table is the same but with "fit text" option selected (right click on the table>proprieties>cells>option>fit text (checked).
The table then deforms!


Is there any genuine way to fix this problem and "fit text" to have a good table format?

Thank you in advance